remove obsolete PR template, moving to master based dev

.github/PULL_REQUEST_TEMPLATE

@@ -1,5 +0,0 @@
-Thank you for making a pull request ! Just a gentle reminder :)
-
-1. If the PR is offering a feature please make the request to our "Feature Branch" 0.11.0
-2. Bug fix request to "Bug Fix Branch" 0.10.9
-3. Correct README.md can directly to master